Two cloud water models (Decker and Salonen) that can be included in the radiative transfer to simulate brightness temperatures from radiosonde data are analyzed. A new cloud model is also proposed: we suggest an improvement of the Salonen’s humidity threshold for detecting the presence of clouds, and a new cloud density function for computing cloud liquid and ice density within a cloud. The performances of the three models are assessed at the Atmospheric Radiation Measurement (ARM) Program’s Southern Great Plaints (SGP) site in Oklahoma, USA, by using data from Vaisala RS90 radiosondes, a ceilometer and a dual-channel microwave radiometer at 23.8 and 31.4 GHz (MWR)

Cloud model studies for the simulation of brightness temperatures: improvements and applications to cloud classification from radiosoundings

BASILI, Patrizia;BONAFONI, Stefania;
2007

Abstract

Two cloud water models (Decker and Salonen) that can be included in the radiative transfer to simulate brightness temperatures from radiosonde data are analyzed. A new cloud model is also proposed: we suggest an improvement of the Salonen’s humidity threshold for detecting the presence of clouds, and a new cloud density function for computing cloud liquid and ice density within a cloud. The performances of the three models are assessed at the Atmospheric Radiation Measurement (ARM) Program’s Southern Great Plaints (SGP) site in Oklahoma, USA, by using data from Vaisala RS90 radiosondes, a ceilometer and a dual-channel microwave radiometer at 23.8 and 31.4 GHz (MWR)
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11391/140787
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